/**************************************************************************
* Original Diku Mud copyright (C) 1990, 1991 by Sebastian Hammer, *
* Michael Seifert, Hans Henrik St{rfeldt, Tom Madsen, and Katja Nyboe. *
* *
* Merc Diku Mud improvements copyright (C) 1992, 1993 by Michael *
* Chastain, Michael Quan, and Mitchell Tse. *
* *
* In order to use any part of this Merc Diku Mud, you must comply with *
* both the original Diku license in 'license.doc' as well the Merc *
* license in 'license.txt'. In particular, you may not remove either of *
* these copyright notices. *
* *
* Much time and thought has gone into this software and you are *
* benefiting. We hope that you share your changes too. What goes *
* around, comes around. *
***************************************************************************
* ROM 2.4 is copyright 1993-1998 Russ Taylor *
* ROM has been brought to you by the ROM consortium *
* Russ Taylor (rtaylor@hypercube.org) *
* Gabrielle Taylor (gtaylor@hypercube.org) *
* Brian Moore (zump@rom.org) *
* By using this code, you have agreed to follow the terms of the *
* ROM license, in the file Rom24/doc/rom.license *
***************************************************************************
* 1stMUD ROM Derivative (c) 2001-2002 by Ryan Jennings *
* http://1stmud.dlmud.com/ <r-jenn@shaw.ca> *
***************************************************************************/
/*
* This file contains all of the OS-dependent stuff:
* startup, signals, BSD sockets for tcp/ip, i/o, timing.
*
* The data flow for input is:
* Game_loop ---> Read_from_descriptor ---> Read
* Game_loop ---> Read_from_buffer
*
* The data flow for output is:
* Game_loop ---> Process_Output ---> Write_to_descriptor -> Write
*
* The OS-dependent functions are Read_from_descriptor and Write_to_descriptor.
* -- Furey 26 Jan 1993
*/
#include <sys/types.h>
#if !defined(WIN32)
#include <sys/time.h>
#include <sys/wait.h>
#include <unistd.h> /* OLC -- for close read write etc */
#else
#include <winsock2.h>
#include <sys\timeb.h>
#include <direct.h>
#include <io.h>
#endif
#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#define __USE_GNU /* for strsignal() */
#define _GNU_SOURCE
#include <string.h>
#undef __USE_GNU
#undef _GNU_SOURCE
#include <stdlib.h>
#include <time.h>
#include <stdarg.h> /* chprintf */
#include "merc.h"
#include "interp.h"
#include "recycle.h"
#include "tables.h"
#if defined(WIN32)
#include "../win32/winstuff.h"
#endif
#include "webserver.h"
#include <signal.h>
#include <fcntl.h>
#if !defined(WIN32)
#include <netdb.h>
#include <netinet/in.h>
#include <sys/socket.h>
#endif
#include "telnet.h"
/*
* Global variables.
*/
DESCRIPTOR_DATA *d_next; /* Next descriptor in loop */
bool god; /* All new chars are gods! */
bool merc_down; /* Shutdown */
char str_boot_time[MAX_INPUT_LENGTH];
/* Needs to be global because of do_copyover */
int port, control;
/* Global variable */
#if !defined(WIN32) && !defined(__CYGWIN__)
volatile sig_atomic_t crashed = 0; /* Are we currently crashing? */
struct itimerval vtimer;
#endif
#if defined( WIN32 )
#define WOULD_HAVE_BLOCKED ( WSAGetLastError() == WSAEWOULDBLOCK )
#else
#define WOULD_HAVE_BLOCKED ( errno == EWOULDBLOCK )
#endif
void game_loop args((int ctrl));
int init_socket args((int prt));
void init_descriptor args((int ctrl));
bool read_from_descriptor args((DESCRIPTOR_DATA * d));
void halt_mud args((int sig));
/*
* Other local functions (OS-independent).
*/
int main args((int argc, char **argv));
void nanny args((DESCRIPTOR_DATA * d, const char *argument));
bool process_output args((DESCRIPTOR_DATA * d, bool fPrompt));
void read_from_buffer args((DESCRIPTOR_DATA * d));
void stop_idling args((CHAR_DATA * ch));
void bust_a_prompt args((CHAR_DATA * ch));
void set_game_levels args((int Old, int New));
void save_helps args((void));
void set_vtimer(long sec)
{
#if !defined(WIN32) && !defined(__CYGWIN__)
#define DEFAULT_VTIMER (60 * 60 * 3) // 3 minutes
vtimer.it_value.tv_sec = sec == -1 ? DEFAULT_VTIMER : sec;
vtimer.it_value.tv_usec = 0;
if (setitimer(ITIMER_VIRTUAL, &vtimer, NULL) < 0)
{
log_string("Failed to set vtimer.");
exit(1);
}
#endif
}
#if !defined(WIN32)
#if !defined(__CYGWIN__)
void sigvalarm(int sig)
{
static int safe_check = 0;
char crash_message_a[] =
"The mud has been looping for the past 60 seconds.";
char crash_message_b[] = "Initiating reboot...";
char crash_message_c[] =
"The mud failed to inform the players of the above.";
switch (safe_check)
{
case 0:
safe_check = 1;
bug(crash_message_a, 0);
bug(crash_message_b, 0);
break;
case 1:
safe_check = 2;
log_string(crash_message_a);
log_string(crash_message_b);
log_string(crash_message_c);
break;
case 2:
break;
}
/* Reboot the MUD */
set_vtimer(-1);
halt_mud(sig); // Shouldn't return
exit(1); // Last resort
}
// Stop an endless loop
static void sigalrm(int sig)
{
static int attempt = 0;
time_t ptm;
time(&ptm);
log_string("TOCK!");
if ((ptm - current_time) > 200 || crashed)
{
if (attempt != 1)
{
attempt = 1; // Try to reboot once...
halt_mud(sig); // Should NOT return
}
raise(SIGSEGV); // Something's wrong, cause a crash
exit(0);
}
}
struct sigaction halt_action, ignore_action, alarm_action, valarm_action;
struct signal_type
{
int signum;
struct sigaction *act;
const char *name; // not used, strsignal() prefered.
const char *desc; // not used, strsignal() prefered.
};
const struct signal_type signal_table[] = {
{SIGPIPE, &ignore_action, "SIGPIPE",
"Broken pipe: write to pipe with no readers"},
{SIGCHLD, &ignore_action, "SIGCHLD", "Child stopped or terminated"},
{SIGHUP, &ignore_action, "SIGHUP",
"Hangup detected on controlling terminal or death of controlling process"},
{SIGINT, &halt_action, "SIGINT", "Interrupt from keyboard"},
{SIGQUIT, &halt_action, "SIGQUIT", "Quit from keyboard"},
{SIGILL, &halt_action, "SIGILL", "Illegal Instruction"},
{SIGFPE, &halt_action, "SIGFPE", "Floating point exception"},
{SIGSEGV, &halt_action, "SIGSEGV", "Invalid memory reference"},
{SIGTERM, &halt_action, "SIGTERM", "Termination signal"},
{SIGBUS, &halt_action, "SIGBUS", "Bus error (bad memory access)"},
{SIGALRM, &alarm_action, "SIGALRM", "Timer signal from alarm(2)"},
{SIGVTALRM, &valarm_action, "SIGVTALRM", "Virtual alarm clock"},
{-1, NULL, NULL, NULL}
};
void set_signals(void)
{
int i;
halt_action.sa_handler = halt_mud;
sigemptyset(&halt_action.sa_mask);
halt_action.sa_flags = SA_NOMASK;
ignore_action.sa_handler = SIG_IGN;
sigemptyset(&ignore_action.sa_mask);
ignore_action.sa_flags = 0;
alarm_action.sa_handler = sigalrm;
sigemptyset(&alarm_action.sa_mask);
alarm_action.sa_flags = SA_NOMASK;
valarm_action.sa_handler = sigvalarm;
sigemptyset(&valarm_action.sa_mask);
valarm_action.sa_flags = SA_NODEFER;
for (i = 0; signal_table[i].signum != -1; i++)
sigaction(signal_table[i].signum, signal_table[i].act, NULL);
vtimer.it_interval.tv_sec = 60;
vtimer.it_interval.tv_usec = 0;
set_vtimer(-1);
}
#endif
#else
void gettimeofday(struct timeval *t, void *tz)
{
struct timeb timebuffer;
ftime(&timebuffer);
t->tv_sec = timebuffer.time;
t->tv_usec = timebuffer.millitm * 1000;
}
#endif
int main(int argc, char **argv)
{
struct timeval now_time;
#if !defined(WIN32) && !defined(__CYGWIN__)
bool fCopyOver = FALSE;
set_signals();
#endif
/*
* Init time.
*/
tzset();
gettimeofday(&now_time, NULL);
current_time = (time_t) now_time.tv_sec;
strcpy(str_boot_time, str_time(current_time, -1, NULL));
/*
* Reserve one channel for our use.
*/
if ((fpReserve = file_open(NULL_FILE, "r")) == NULL)
{
perror(NULL_FILE);
exit(1);
}
/*
* Get the port number.
*/
port = 4000;
if (argc > 1)
{
if (!str_cmp(argv[1], "levels"))
{
if (IS_NULLSTR(argv[2]) || IS_NULLSTR(argv[3])
|| !is_number(argv[2]) || !is_number(argv[3]))
{
logf("Usage: %s levels [old max level] [new max level]",
argv[0]);
exit(1);
}
boot_db();
set_game_levels(atoi(argv[2]), atoi(argv[3]));
exit(0);
}
else if (!is_number(argv[1]))
{
logf("Usage: %s [port #]\n", argv[0]);
exit(1);
}
else if ((port = atoi(argv[1])) <= 1024)
{
logf("Port number must be above 1024.\n");
exit(1);
}
#if !defined(WIN32) && !defined(__CYGWIN__)
/* Are we recovering from a copyover? */
if (argv[2] && argv[2][0])
{
fCopyOver = TRUE;
control = atoi(argv[3]);
}
else
fCopyOver = FALSE;
#endif
}
#if defined(WIN32)
{
/* Initialise Windows sockets library */
unsigned short wVersionRequested = MAKEWORD(1, 1);
WSADATA wsadata;
int err;
/* Need to include library: wsock32.lib for Windows Sockets */
err = WSAStartup(wVersionRequested, &wsadata);
if (err)
{
logf("Error %i on WSAStartup\n", err);
exit(1);
}
}
#endif
/*
* Run the game.
*/
#if !defined(WIN32) && !defined(__CYGWIN__)
if (!fCopyOver)
#endif
control = init_socket(port);
#if !defined(NO_WEB)
WebUP = init_web_server();
#endif
boot_db();
sprintf(log_buf, "ROM is ready to rock on port %d.", port);
log_string(log_buf);
#if !defined(WIN32) && !defined(__CYGWIN__)
if (fCopyOver)
copyover_recover();
#endif
game_loop(control);
#if !defined(NO_WEB)
shutdown_web_server();
#endif
close(control);
/*
* That's all, folks.
*/
log_string("Normal termination of game.");
exit(0);
return 0;
}
int init_socket(int prt)
{
static struct sockaddr_in sa_zero;
struct sockaddr_in sa;
int x = 1;
int fd;
if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
{
perror("Init_socket: socket");
exit(-1);
}
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *) &x, sizeof(x)) < 0)
{
perror("Init_socket: SO_REUSEADDR");
close(fd);
exit(-1);
}
#if defined(SO_DONTLINGER) && !defined(SYSV)
{
struct linger ld;
ld.l_onoff = 1;
ld.l_linger = 1000;
if (setsockopt
(fd, SOL_SOCKET, SO_DONTLINGER, (char *) &ld, sizeof(ld)) < 0)
{
perror("Init_socket: SO_DONTLINGER");
close(fd);
exit(-1);
}
}
#endif
sa = sa_zero;
sa.sin_family = AF_INET;
sa.sin_port = htons(prt);
if (bind(fd, (struct sockaddr *) &sa, sizeof(sa)) < 0)
{
perror("Init socket: bind");
close(fd);
exit(-1);
}
if (listen(fd, 3) < 0)
{
perror("Init socket: listen");
close(fd);
exit(-1);
}
return fd;
}
void show_greeting(DESCRIPTOR_DATA * dnew)
{
extern const char *help_greeting;
if (help_greeting[0] == '.')
write_to_buffer(dnew, help_greeting + 1, 0);
else
write_to_buffer(dnew, help_greeting, 0);
}
#define MS_PER_PULSE ( 1000 / PULSE_PER_SECOND )
// maintained by SyncGameClock; currently read only by WaitForPulse()
unsigned long last_pulse_millisec;
void SynchronizeClock(void)
{
#if defined( WIN32 )
struct _timeb now_time;
_ftime(&now_time);
current_time = now_time.time;
last_pulse_millisec = now_time.millitm;
#else
struct timeval last_time;
gettimeofday(&last_time, NULL);
current_time = (time_t) last_time.tv_sec;
last_pulse_millisec = (unsigned long) last_time.tv_usec / 1000;
#endif
}
#if !defined(WIN32)
void Sleep(time_t milliseconds)
{
struct timeval nap_time;
nap_time.tv_usec = 1000 * milliseconds;
nap_time.tv_sec = 0;
if (select(0, NULL, NULL, NULL, &nap_time) < 0)
{
switch (errno)
{
case EBADF:
bug("Invalid file descriptor passed to Select()", 0);
break;
case EINTR: //bugf("A non-blocked signal was caught.", 0);
break;
case EINVAL:
bug("Negative \'n\' descriptor passed to Select()", 0);
break;
case ENOMEM:
bug("Select() was unable to allocate memory for internal tables.",
0);
break;
default:
bug("Unknown error.", 0);
break;
}
}
}
#endif
void WaitForPulse()
{
signed long pulse;
signed long nap;
#if !defined(WIN32)
struct timeval now_time;
gettimeofday(&now_time, NULL);
pulse = ((int) now_time.tv_sec) - ((int) current_time);
// Careful here of signed versus unsigned arithmetic.
pulse *= 1000;
pulse += ((int) now_time.tv_usec / 1000) - ((int) last_pulse_millisec);
#else
struct _timeb now_time;
_ftime(&now_time);
pulse = now_time.time - current_time;
pulse *= 1000;
pulse += now_time.millitm - last_pulse_millisec;
#endif
nap = MS_PER_PULSE - pulse;
if (nap > 0)
{
Sleep(nap);
}
}
void game_loop(int ctrl)
{
static struct timeval null_time = { 0, 0 };
int vt_set = 0;
#if !defined(WIN32)
signal(SIGPIPE, SIG_IGN);
signal(SIGCHLD, SIG_IGN);
#endif
SynchronizeClock();
/* Main loop */
while (!merc_down)
{
fd_set in_set;
fd_set out_set;
fd_set exc_set;
DESCRIPTOR_DATA *d;
int maxdesc;
/*
* Poll all active descriptors.
*/
FD_ZERO(&in_set);
FD_ZERO(&out_set);
FD_ZERO(&exc_set);
FD_SET(ctrl, &in_set);
maxdesc = ctrl;
for (d = descriptor_first; d; d = d->next)
{
maxdesc = UMAX(maxdesc, d->descriptor);
FD_SET(d->descriptor, &in_set);
FD_SET(d->descriptor, &out_set);
FD_SET(d->descriptor, &exc_set);
}
if (select(maxdesc + 1, &in_set, &out_set, &exc_set, &null_time) < 0)
{
if (errno != EINTR)
{
perror("Game_loop: select: poll");
exit(1);
}
}
/*
* New connection?
*/
if (FD_ISSET(ctrl, &in_set))
init_descriptor(ctrl);
/*
* Kick out the freaky folks.
*/
for (d = descriptor_first; d != NULL; d = d_next)
{
d_next = d->next;
if (FD_ISSET(d->descriptor, &exc_set))
{
FD_CLR(d->descriptor, &in_set);
FD_CLR(d->descriptor, &out_set);
if (d->character && d->connected == CON_PLAYING)
save_char_obj(d->character);
d->outtop = 0;
close_socket(d);
}
}
/*
* Process input.
*/
for (d = descriptor_first; d != NULL; d = d_next)
{
d_next = d->next;
d->fcommand = FALSE;
if (FD_ISSET(d->descriptor, &in_set))
{
if (d->character != NULL)
d->character->timer = 0;
if (!read_from_descriptor(d))
{
FD_CLR(d->descriptor, &out_set);
if (d->character != NULL && d->connected == CON_PLAYING)
save_char_obj(d->character);
d->outtop = 0;
close_socket(d);
continue;
}
}
if (d->character != NULL && d->character->daze > 0)
--d->character->daze;
if (d->character != NULL && d->character->wait > 0)
{
--d->character->wait;
continue;
}
read_from_buffer(d);
if (d->incomm[0] != '\0')
{
d->fcommand = TRUE;
stop_idling(d->character);
vt_set = 0;
set_vtimer(60);
/* OLC */
if (d->showstr_point)
show_string(d, d->incomm);
else if (d->pString)
string_add(d->character, d->incomm);
else
switch (d->connected)
{
case CON_PLAYING:
substitute_alias(d, d->incomm);
break;
default:
nanny(d, d->incomm);
break;
}
d->incomm[0] = '\0';
}
}
/*
* Autonomous game motion.
*/
update_handler();
#if !defined(NO_WEB)
if (WebUP)
update_web_server();
#endif
/*
* Output.
*/
for (d = descriptor_first; d != NULL; d = d_next)
{
d_next = d->next;
if ((d->fcommand || d->outtop > 0
#if !defined(NO_MCCP)
|| d->out_compress) &&
#else
) &&
#endif
FD_ISSET(d->descriptor, &out_set))
{
bool ok = TRUE;
if (d->fcommand || d->outtop > 0)
ok = process_output(d, TRUE);
#if !defined(NO_MCCP)
if (ok && d->out_compress)
ok = processCompressed(d);
#endif
if (!ok)
{
if (d->character != NULL && d->connected == CON_PLAYING)
save_char_obj(d->character);
d->outtop = 0;
close_socket(d);
}
}
}
/*
* Synchronize to a clock.
* Sleep( last_time + 1/PULSE_PER_SECOND - now ).
* Careful here of signed versus unsigned arithmetic.
*/
WaitForPulse();
SynchronizeClock();
if (++vt_set >= 35)
{
vt_set = 0;
set_vtimer(60);
}
}
return;
}
void init_descriptor(int ctrl)
{
char buf[MAX_STRING_LENGTH];
DESCRIPTOR_DATA *dnew;
struct sockaddr_in sock;
struct hostent *from;
int desc;
#if defined(__CYGWIN__)
int size;
#else
unsigned int size;
#endif
#if defined(WIN32)
static unsigned long ARGP = 1;
#endif
size = sizeof(sock);
getsockname(ctrl, (struct sockaddr *) &sock, &size);
if ((desc = accept(ctrl, (struct sockaddr *) &sock, &size)) < 0)
{
perror("New_descriptor: accept");
return;
}
#if !defined(FNDELAY)
#define FNDELAY O_NDELAY
#endif
#if defined( WIN32 )
if (ioctlsocket(desc, FIONBIO, &ARGP) != 0)
{
bugf("ioctlsocket returned error code %d", WSAGetLastError());
return;
}
#else
if (fcntl(desc, F_SETFL, FNDELAY) == -1)
{
perror("New_descriptor: fcntl: FNDELAY");
return;
}
#endif
/*
* Cons a new descriptor.
*/
dnew = new_descriptor(); /* new_descriptor now also allocates things */
dnew->descriptor = desc;
size = sizeof(sock);
if (getpeername(desc, (struct sockaddr *) &sock, &size) < 0)
{
perror("New_descriptor: getpeername");
dnew->host = str_dup("(unknown)");
}
else
{
/*
* Would be nice to use inet_ntoa here but it takes a struct arg,
* which ain't very compatible between gcc and system libraries.
*/
int addr;
addr = ntohl(sock.sin_addr.s_addr);
sprintf(buf, "%d.%d.%d.%d", (addr >> 24) & 0xFF,
(addr >> 16) & 0xFF, (addr >> 8) & 0xFF, (addr) & 0xFF);
sprintf(log_buf, "Sock.sinaddr: %s", buf);
log_string(log_buf);
from =
gethostbyaddr((char *) &sock.sin_addr,
sizeof(sock.sin_addr), AF_INET);
dnew->host = str_dup(from ? from->h_name : buf);
}
/*
* Swiftest: I added the following to ban sites. I don't
* endorse banning of sites, but Copper has few descriptors now
* and some people from certain sites keep abusing access by
* using automated 'autodialers' and leaving connections hanging.
*
* Furey: added suffix check by request of Nickel of HiddenWorlds.
*/
if (check_ban(dnew->host, BAN_ALL))
{
write_to_descriptor(dnew,
"Your site has been banned from this mud.\n\r", 0);
close(desc);
free_descriptor(dnew);
return;
}
/*
* Init descriptor data.
*/
LINK(dnew, descriptor_first, descriptor_last, next, prev);
/*
* Send the greeting.
*/
init_telnet(dnew);
write_to_buffer(dnew,
"Would you like ANSI color? (Y)es, (N)o, (T)est:\n\r", 0);
return;
}
void close_socket(DESCRIPTOR_DATA * dclose)
{
CHAR_DATA *ch;
if (dclose->outtop > 0)
process_output(dclose, FALSE);
if (dclose->snoop_by != NULL)
{
write_to_buffer(dclose->snoop_by,
"Your victim has left the game.\n\r", 0);
}
{
DESCRIPTOR_DATA *d;
for (d = descriptor_first; d != NULL; d = d->next)
{
if (d->snoop_by == dclose)
d->snoop_by = NULL;
}
}
if ((ch = dclose->character) != NULL)
{
sprintf(log_buf, "Closing link to %s.", ch->name);
log_string(log_buf);
/* cut down on wiznet spam when rebooting */
/* If ch is writing note or playing, just lose link otherwise clear char */
if ((dclose->connected == CON_PLAYING && !merc_down) ||
((dclose->connected >= CON_NOTE_TO) &&
(dclose->connected <= CON_NOTE_FINISH)))
{
act("$n has lost $s link.", ch, NULL, NULL, TO_ROOM);
wiznet("Net death has claimed $N.", ch, NULL, WIZ_LINKS, 0, 0);
ch->desc = NULL;
}
else
{
free_char(dclose->original ? dclose->original : dclose->character);
}
}
free_runbuf(dclose);
if (d_next == dclose)
d_next = d_next->next;
UNLINK(dclose, descriptor_first, descriptor_last, next, prev);
#if !defined(NO_MCCP)
if (dclose->out_compress)
{
deflateEnd(dclose->out_compress);
free_mem(dclose->out_compress_buf);
free_mem(dclose->out_compress);
}
#endif
close(dclose->descriptor);
free_descriptor(dclose);
return;
}
bool read_from_descriptor(DESCRIPTOR_DATA * d)
{
unsigned int iStart, index;
static char buf[sizeof(d->inbuf)];
memset(buf, 0, sizeof(buf));
/* Hold horses if pending command already. */
if (d->incomm[0] != '\0')
return TRUE;
/* Check for overflow. */
iStart = strlen(d->inbuf);
index = 0;
if (iStart >= sizeof(d->inbuf) - 10)
{
logf("%s input overflow!", d->host);
write_to_descriptor(d, "\n\r*** PUT A LID ON IT!!! ***\n\r", 0);
d->inbuf[sizeof(d->inbuf) - 10] = '\0';
return TRUE;
}
for (;;)
{
int nRead;
nRead = read(d->descriptor, buf + index, sizeof(buf) - 10 - index);
if (nRead > 0)
{
index += nRead;
if (buf[index - 1] == '\n' || buf[index - 1] == '\r')
break;
}
else if (nRead == 0)
{
logf("Read_from_descriptor: EOF encountered on read.");
return FALSE;
}
else if (WOULD_HAVE_BLOCKED)
break;
else
{
perror("Read_from_descriptor");
return FALSE;
}
}
/* process_telnet does the actual writing in d->inbuf now! */
process_telnet(d, index, buf);
if (d->connected == CON_GET_TERM && (DESC_FLAGGED(d, DESC_TELOPT_EOR) ||
DESC_FLAGGED(d, DESC_TELOPT_ECHO)
|| DESC_FLAGGED(d, DESC_TELOPT_NAWS)
#if !defined(NO_MCCP)
|| d->out_compress
#endif
))
{
SET_BIT(d->d_flags, DESC_COLOUR);
write_to_buffer(d, "{`Colour{c enabled Automatically...{x\n\r", 0);
show_greeting(d);
d->connected = CON_GET_NAME;
}
return TRUE;
}
/*
* Transfer one line from input buffer to input line.
*/
void read_from_buffer(DESCRIPTOR_DATA * d)
{
int i, j, k;
/*
* Hold horses if pending command already.
*/
if (d->incomm[0] != '\0')
return;
if (d->character && d->character->position == POS_FIGHTING && d->run_buf)
free_runbuf(d);
if (d->run_buf)
{
while (isdigit(*d->run_head) && *d->run_head != '\0')
{
char *s;
char *e;
s = (char *) d->run_head;
while (isdigit(*s))
s++;
e = s;
while (*(--s) == '0' && s != d->run_head);
if (isdigit(*s) && *s != '0' && *e != 'o')
{
d->incomm[0] = *e;
d->incomm[1] = '\0';
s[0]--;
while (isdigit(*(++s)))
*s = '9';
return;
}
if (*e == 'o')
d->run_head = e;
else
d->run_head = ++e;
}
if (*d->run_head != '\0')
{
if (*d->run_head != 'o')
{
d->incomm[0] = *d->run_head++;
d->incomm[1] = '\0';
return;
}
else
{
char buf[MAX_INPUT_LENGTH];
d->run_head++;
strcpy(buf, "open ");
switch (*d->run_head)
{
case 'n':
strcat(buf, "north");
break;
case 's':
strcat(buf, "south");
break;
case 'e':
strcat(buf, "east");
break;
case 'w':
strcat(buf, "west");
break;
case 'u':
strcat(buf, "up");
break;
case 'd':
strcat(buf, "down");
break;
default:
return;
}
strcpy(d->incomm, buf);
d->run_head++;
return;
}
}
free_runbuf(d);
}
/*
* Look for at least one new line.
*/
for (i = 0; d->inbuf[i] != '\n' && d->inbuf[i] != '\r'; i++)
{
if (d->inbuf[i] == '\0')
return;
}
/*
* Canonical input processing.
*/
for (i = 0, k = 0; d->inbuf[i] != '\n' && d->inbuf[i] != '\r'; i++)
{
if (k >= MAX_INPUT_LENGTH - 2)
{
write_to_descriptor(d, "Line too long.\n\r", 0);
/* skip the rest of the line */
for (; d->inbuf[i] != '\0'; i++)
{
if (d->inbuf[i] == '\n' || d->inbuf[i] == '\r')
break;
}
d->inbuf[i] = '\n';
d->inbuf[i + 1] = '\0';
break;
}
if (d->inbuf[i] == '\b' && k > 0)
--k;
else if (isascii(d->inbuf[i]) && isprint(d->inbuf[i]))
d->incomm[k++] = d->inbuf[i];
}
/*
* Finish off the line.
*/
if (k == 0)
d->incomm[k++] = ' ';
d->incomm[k] = '\0';
/*
* Deal with bozos with #repeat 1000 ...
*/
if (k > 1 || d->incomm[0] == '!')
{
if (d->incomm[0] != '!' && str_cmp(d->incomm, d->inlast))
{
d->repeat = 0;
}
else
{
if (++d->repeat >= 25 && d->character &&
d->connected == CON_PLAYING)
{
sprintf(log_buf, "%s input spamming!", d->host);
log_string(log_buf);
wiznet
("Spam spam spam $N spam spam spam spam spam!",
d->character, NULL, WIZ_SPAM, 0, get_trust(d->character));
if (d->incomm[0] == '!')
wiznet(d->inlast, d->character, NULL,
WIZ_SPAM, 0, get_trust(d->character));
else
wiznet(d->incomm, d->character, NULL,
WIZ_SPAM, 0, get_trust(d->character));
d->repeat = 0;
/*
write_to_descriptor( d,
"\n\r*** PUT A LID ON IT!!! ***\n\r", 0 );
strcpy( d->incomm, "quit" );
*/
}
}
}
/*
* Do '!' substitution.
*/
if (d->incomm[0] == '!')
strcpy(d->incomm, d->inlast);
else
strcpy(d->inlast, d->incomm);
/*
* Shift the input buffer.
*/
while (d->inbuf[i] == '\n' || d->inbuf[i] == '\r')
i++;
for (j = 0; (d->inbuf[j] = d->inbuf[i + j]) != '\0'; j++)
;
return;
}
int col_attr, col_fore, col_back;
int random_attr(void)
{
if (number_range(1, 50) < 25)
return CL_CLEAR;
else
return CL_BRIGHT;
}
int random_fore(void)
{
return number_range(FG_BLACK, FG_WHITE);
}
int random_back(void)
{
return number_range(BG_BLACK, BG_WHITE);
}
char *make_colour(void)
{
bool a, b;
if (col_attr == CL_RANDOM)
col_attr = random_attr();
if (col_fore == FG_RANDOM)
col_fore = random_fore();
if (col_back == BG_RANDOM)
col_back = random_back();
a = (col_fore != FG_NONE);
b = (col_back != BG_NONE);
if (!a && !b)
return FORMATF(CL_FORMAT1, col_attr);
else if (a && !b)
return FORMATF(CL_FORMAT2, col_attr, col_fore);
else if (!a && b)
return FORMATF(CL_FORMAT2, col_attr, col_back);
else
return FORMATF(CL_FORMAT3, col_attr, col_fore, col_back);
}
/* Taken from Gary McNickel's WOTmud
Updated by Markanth */
bool process_ansi_output(DESCRIPTOR_DATA * d)
{
CHAR_DATA *ch;
char *counter;
char output[MSL * 10];
char temp[MSL];
char *work;
bool success = TRUE;
char *i;
if (d == NULL)
return FALSE;
ch = (d->original ? d->original : d->character);
memset(output, 0, sizeof(output));
counter = output;
work = d->outbuf;
while (*work != '\0' && (work - d->outbuf) < d->outtop)
{
if ((long) (counter - output) >= MSL - 32)
{
*counter++ = '\0';
if (!(success = write_to_descriptor(d, output, strlen(output))))
break;
memset(output, 0, sizeof(output));
counter = output;
}
if (*work == ANSI_KEY)
{
work++;
temp[0] = '\0';
if (DESC_FLAGGED(d, DESC_COLOUR) &&
(!ch || !IS_SET(ch->comm, COMM_NOCOLOUR)))
{
switch (*work)
{
case '\0':
break;
case ' ':
sprintf(temp, "%c ", ANSI_KEY);
break;
case '-':
strcpy(temp, "~");
break;
case 'P':
case 'p':
sprintf(temp, "%c", 007);
break;
case ANSI_KEY:
sprintf(temp, "%c", ANSI_KEY);
break;
default:
{
switch (*work)
{
case 'x':
case 'X':
strcpy(temp, char_colour(ch, _DEFAULT));
break;
case 'v':
case 'V':
col_attr = CL_REVERSE;
break;
case 'u':
case 'U':
col_attr = CL_UNDER;
break;
case 'f':
case 'F':
col_attr = CL_BLINK;
break;
case 'b':
col_attr = CL_CLEAR;
col_fore = FG_BLUE;
break;
case 'c':
col_attr = CL_CLEAR;
col_fore = FG_CYAN;
break;
case 'g':
col_attr = CL_CLEAR;
col_fore = FG_GREEN;
break;
case 'm':
col_attr = CL_CLEAR;
col_fore = FG_MAGENTA;
break;
case 'd':
col_attr = CL_CLEAR;
col_fore = FG_BLACK;
break;
case 'r':
col_attr = CL_CLEAR;
col_fore = FG_RED;
break;
case 'y':
col_attr = CL_CLEAR;
col_fore = FG_YELLOW;
break;
case 'w':
col_attr = CL_CLEAR;
col_fore = FG_WHITE;
break;
case 'B':
col_attr = CL_BRIGHT;
col_fore = FG_BLUE;
break;
case 'C':
col_attr = CL_BRIGHT;
col_fore = FG_CYAN;
break;
case 'G':
col_attr = CL_BRIGHT;
col_fore = FG_GREEN;
break;
case 'M':
col_attr = CL_BRIGHT;
col_fore = FG_MAGENTA;
break;
case 'D':
col_attr = CL_BRIGHT;
col_fore = FG_BLACK;
break;
case 'R':
col_attr = CL_BRIGHT;
col_fore = FG_RED;
break;
case 'W':
col_attr = CL_BRIGHT;
col_fore = FG_WHITE;
break;
case 'Y':
col_attr = CL_BRIGHT;
col_fore = FG_YELLOW;
break;
case '`':
col_attr = CL_RANDOM;
col_fore = FG_RANDOM;
break;
case '1':
col_back = BG_RED;
break;
case '2':
col_back = BG_BLUE;
break;
case '3':
col_back = BG_GREEN;
break;
case '4':
col_back = BG_BLACK;
break;
case '5':
col_back = BG_WHITE;
break;
case '6':
col_back = BG_MAGENTA;
break;
case '7':
col_back = BG_YELLOW;
break;
case '8':
col_back = BG_CYAN;
break;
case '+':
case '=':
col_attr = CL_RANDOM;
col_back = BG_RANDOM;
break;
}
strcpy(temp, make_colour());
break;
}
}
}
work++;
i = temp;
while ((*counter = *i) != '\0')
++counter, ++i;
}
/* Custom colour added by Markanth */
else if (*work == ANSI_CUSTOM)
{
int slot = 0;
work++;
while (*work != ANSI_END)
{
if (isdigit(*work))
slot = (slot * 10) + (*work - '0');
work++;
}
work++;
temp[0] = '\0';
if (slot < 0 || slot >= MAX_CUSTOM_COLOUR)
{
bug("ansi_output: invalid custom color", 0);
strcpy(temp, CL_DEFAULT);
col_attr = CL_CLEAR;
col_fore = FG_NONE;
col_back = BG_NONE;
}
else if (DESC_FLAGGED(d, DESC_COLOUR) &&
(!ch || !IS_SET(ch->comm, COMM_NOCOLOUR)))
{
strcpy(temp, char_colour(ch, slot));
}
i = temp;
while ((*counter = *i) != '\0')
++counter, ++i;
}
else
*counter++ = *work++;
}
success = success && (write_to_descriptor(d, output, strlen(output)));
d->outtop = 0;
return success;
}
/*
* Low level output function.
*/
bool process_output(DESCRIPTOR_DATA * d, bool fPrompt)
{
/*
* Bust a prompt.
*/
if (!merc_down)
{
if (d->showstr_point)
{
char buf[MSL];
const char *ptr;
int shown_lines = 0;
int total_lines = 0;
for (ptr = d->showstr_head; ptr != d->showstr_point; ptr++)
if (*ptr == '\n')
shown_lines++;
total_lines = shown_lines;
for (ptr = d->showstr_point; *ptr != '\0'; ptr++)
if (*ptr == '\n')
total_lines++;
sprintf(buf,
"\n\r(%d%%) Please type (H)elp, (R)efresh, (B)ack, or (C)ontinue or hit ENTER.\n\r",
100 * shown_lines / total_lines);
write_to_buffer(d, buf, 0);
}
else if (fPrompt && d->pString && d->connected == CON_PLAYING)
write_to_buffer(d, "> ", 2);
else if (fPrompt && d->connected == CON_NOTE_TEXT)
write_to_buffer(d, "> ", 2);
else if (fPrompt && d->connected == CON_PLAYING)
{
CHAR_DATA *ch;
CHAR_DATA *victim;
ch = d->character;
/* battle prompt */
if ((victim = ch->fighting) != NULL && can_see(ch, victim))
{
int percent;
char wound[100];
char buf[MAX_STRING_LENGTH];
if (victim->max_hit > 0)
percent = victim->hit * 100 / victim->max_hit;
else
percent = -1;
if (percent >= 100)
sprintf(wound, "is in excellent condition.");
else if (percent >= 90)
sprintf(wound, "has a few scratches.");
else if (percent >= 75)
sprintf(wound, "has some small wounds and bruises.");
else if (percent >= 50)
sprintf(wound, "has quite a few wounds.");
else if (percent >= 30)
sprintf(wound, "has some big nasty wounds and scratches.");
else if (percent >= 15)
sprintf(wound, "looks pretty hurt.");
else if (percent >= 0)
sprintf(wound, "is in awful condition.");
else
sprintf(wound, "is bleeding to death.");
sprintf(buf, "%s %s \n\r",
IS_NPC(victim) ? victim->short_descr :
victim->name, wound);
buf[0] = UPPER(buf[0]);
write_to_buffer(d, buf, 0);
}
ch = d->original ? d->original : d->character;
if (!IS_SET(ch->comm, COMM_COMPACT)
&& (d->fcommand || ch->fighting || d->editor > 0))
write_to_buffer(d, "\n\r", 2);
if (IS_SET(ch->comm, COMM_PROMPT))
{
if ((d->fcommand && !d->run_buf) || ch->fighting)
bust_a_prompt(d->character);
else if (d->editor > 0)
{
chprintlnf(ch, "{cOLC %s : {W%s{x",
olc_ed_name(d->character),
olc_ed_vnum(d->character));
}
}
if (IS_SET(ch->comm, COMM_TELNET_GA))
{
write_to_buffer(d, go_ahead_str, 0);
}
else if (IS_SET(ch->comm, COMM_TELNET_EOR))
{
char eor_str[] = { IAC, EOR, '\0' };
write_to_buffer(d, eor_str, 0);
}
}
}
/*
* Short-circuit if nothing to write.
*/
if (d->outtop == 0)
return TRUE;
/*
* Snoop-o-rama.
*/
if (d->snoop_by != NULL)
{
if (d->character != NULL)
write_to_buffer(d->snoop_by, d->character->name, 0);
write_to_buffer(d->snoop_by, "> ", 2);
write_to_buffer(d->snoop_by, d->outbuf, d->outtop);
}
/*
* OS-dependent output.
*/
return process_ansi_output(d);
}
/*
* Bust a prompt (player settable prompt)
* coded by Morgenes for Aldara Mud
*/
void bust_a_prompt(CHAR_DATA * ch)
{
char buf[MAX_STRING_LENGTH];
char buf2[MAX_STRING_LENGTH];
const char *str;
const char *i;
char *point;
char doors[MAX_INPUT_LENGTH];
EXIT_DATA *pexit;
bool found;
const char *dir_letter[] = { "N", "E", "S", "W", "U", "D" };
int door;
point = buf;
str = ch->prompt;
if (str == NULL || str[0] == '\0')
{
chprintlnf(ch, "<%ldhp %ldm %ldmv> %s", ch->hit, ch->mana,
ch->move, ch->prefix);
return;
}
if (IS_SET(ch->comm, COMM_AFK))
{
chprint(ch, "<AFK> ");
return;
}
while (*str != '\0')
{
if (*str != '%')
{
*point++ = *str++;
continue;
}
++str;
switch (*str)
{
default:
i = " ";
break;
case 'e':
found = FALSE;
doors[0] = '\0';
for (door = 0; door < 6; door++)
{
if ((pexit = ch->in_room->exit[door]) != NULL &&
pexit->u1.to_room != NULL &&
(can_see_room(ch, pexit->u1.to_room) ||
(IS_AFFECTED(ch, AFF_INFRARED) &&
!IS_AFFECTED(ch, AFF_BLIND))) &&
!IS_SET(pexit->exit_info, EX_CLOSED))
{
found = TRUE;
strcat(doors, dir_letter[door]);
}
}
if (!found)
strcat(buf, "none");
sprintf(buf2, "%s", doors);
i = buf2;
break;
case 'c':
sprintf(buf2, "%s", "\n\r");
i = buf2;
break;
case 'h':
sprintf(buf2, "%ld", ch->hit);
i = buf2;
break;
case 'H':
sprintf(buf2, "%ld", ch->max_hit);
i = buf2;
break;
case 'm':
sprintf(buf2, "%ld", ch->mana);
i = buf2;
break;
case 'M':
sprintf(buf2, "%ld", ch->max_mana);
i = buf2;
break;
case 'v':
sprintf(buf2, "%ld", ch->move);
i = buf2;
break;
case 'V':
sprintf(buf2, "%ld", ch->max_move);
i = buf2;
break;
case 'x':
sprintf(buf2, "%d", ch->exp);
i = buf2;
break;
case 'X':
sprintf(buf2, "%d",
IS_NPC(ch) ? 0 : (ch->level +
1) * exp_per_level(ch,
ch->pcdata->points) -
ch->exp);
i = buf2;
break;
case 'g':
sprintf(buf2, "%ld", ch->gold);
i = buf2;
break;
case 's':
sprintf(buf2, "%ld", ch->silver);
i = buf2;
break;
case 'a':
if (ch->level > 9)
sprintf(buf2, "%d", ch->alignment);
else
sprintf(buf2, "%s",
IS_GOOD(ch) ? "good" : IS_EVIL(ch) ?
"evil" : "neutral");
i = buf2;
break;
case 'r':
if (ch->in_room != NULL)
sprintf(buf2, "%s",
((!IS_NPC(ch) &&
IS_SET(ch->act, PLR_HOLYLIGHT)) ||
(!IS_AFFECTED(ch, AFF_BLIND) &&
!room_is_dark(ch->in_room))) ? ch->
in_room->name : "darkness");
else
sprintf(buf2, " ");
i = buf2;
break;
case 'R':
if (IS_IMMORTAL(ch) && ch->in_room != NULL)
sprintf(buf2, "%ld", ch->in_room->vnum);
else
sprintf(buf2, " ");
i = buf2;
break;
case 'Q':
if (gquest_info.running != GQUEST_OFF)
sprintf(buf2, "%d", gquest_info.timer);
else
sprintf(buf2, "%dn", gquest_info.timer);
i = buf2;
break;
case 'z':
if (IS_IMMORTAL(ch) && ch->in_room != NULL)
sprintf(buf2, "%s", ch->in_room->area->name);
else
sprintf(buf2, " ");
i = buf2;
break;
case '%':
sprintf(buf2, "%%");
i = buf2;
break;
case 'o':
sprintf(buf2, "%s", olc_ed_name(ch));
i = buf2;
break;
case 'O':
sprintf(buf2, "%s", olc_ed_vnum(ch));
i = buf2;
break;
case 'q':
if (!IS_NPC(ch))
{
if (!IS_SET(ch->act, PLR_QUESTOR))
sprintf(buf2, "%d", ch->pcdata->nextquest);
else
sprintf(buf2, "%d", ch->pcdata->countdown);
}
else
strcpy(buf2, " ");
i = buf2;
break;
}
++str;
while ((*point = *i) != '\0')
++point, ++i;
}
write_to_buffer(ch->desc, buf, point - buf);
if (ch->prefix[0] != '\0')
write_to_buffer(ch->desc, ch->prefix, 0);
return;
}
/*
* Append onto an output buffer.
*/
void write_to_buffer(DESCRIPTOR_DATA * d, const char *txt, int length)
{
/*
* Find length in case caller didn't.
*/
if (length <= 0)
length = strlen(txt);
/*
* Initial \n\r if needed.
*/
if (d->outtop == 0 && !d->fcommand)
{
d->outbuf[0] = '\n';
d->outbuf[1] = '\r';
d->outtop = 2;
}
/*
* Expand the buffer as needed.
*/
while (d->outtop + length >= d->outsize)
{
char *outbuf;
if (d->outsize >= 32000)
{
bug("Buffer overflow. Closing.\n\r", 0);
close_socket(d);
return;
}
alloc_mem(outbuf, char, 2 * d->outsize);
strncpy(outbuf, d->outbuf, d->outtop);
free_mem(d->outbuf);
d->outbuf = outbuf;
d->outsize *= 2;
}
/*
* Copy.
*/
strncpy((char *) d->outbuf + d->outtop, txt, length);
d->outtop += length;
return;
}
/*
* Lowest level output function.
* Write a block of text to the file descriptor.
* If this gives errors on very long blocks (like 'ofind all'),
* try lowering the max block size.
*/
bool write_to_descriptor(DESCRIPTOR_DATA * d, char *txt, int length)
{
int iStart;
int nWrite;
int nBlock;
if (length <= 0)
length = strlen(txt);
#if !defined(NO_MCCP)
if (d->out_compress)
return writeCompressed(d, txt, length);
else
#endif
{
for (iStart = 0; iStart < length; iStart += nWrite)
{
nBlock = UMIN(length - iStart, 4096);
if ((nWrite = write(d->descriptor, txt + iStart, nBlock)) < 0)
{
perror("Write_to_descriptor");
return FALSE;
}
}
return TRUE;
}
}
/*
* Parse a name for acceptability.
*/
bool check_parse_name(const char *name)
{
CLAN_DATA *clan;
/*
* Reserved words.
*/
if (is_exact_name
(name, "all auto immortal self someone something the you loner none"))
{
return FALSE;
}
/* check clans */
for (clan = clan_first; clan; clan = clan->next)
{
if (LOWER(name[0]) == LOWER(clan->name[0]) &&
!str_cmp(name, clan->name))
return FALSE;
}
if (str_cmp(capitalize(name), "Alander") &&
(!str_prefix("Alan", name) || !str_suffix("Alander", name)))
return FALSE;
/*
* Length restrictions.
*/
if (strlen(name) < 2)
return FALSE;
if (strlen(name) > 12)
return FALSE;
/*
* Alphanumerics only.
* Lock out IllIll twits.
*/
{
const char *pc;
bool fIll, adjcaps = FALSE, cleancaps = FALSE;
unsigned int total_caps = 0;
fIll = TRUE;
for (pc = name; *pc != '\0'; pc++)
{
if (!isalpha(*pc))
return FALSE;
if (isupper(*pc)) /* ugly anti-caps hack */
{
if (adjcaps)
cleancaps = TRUE;
total_caps++;
adjcaps = TRUE;
}
else
adjcaps = FALSE;
if (LOWER(*pc) != 'i' && LOWER(*pc) != 'l')
fIll = FALSE;
}
if (fIll)
return FALSE;
if (cleancaps || (total_caps > (strlen(name)) / 2 && strlen(name) < 3))
return FALSE;
}
/*
* Prevent players from naming themselves after mobs.
*/
{
MOB_INDEX_DATA *pMobIndex;
int iHash;
for (iHash = 0; iHash < MAX_KEY_HASH; iHash++)
{
for (pMobIndex = mob_index_hash[iHash]; pMobIndex != NULL;
pMobIndex = pMobIndex->next)
{
if (is_name(name, pMobIndex->player_name))
return FALSE;
}
}
}
return TRUE;
}
/*
* Look for link-dead player to reconnect.
*/
bool check_reconnect(DESCRIPTOR_DATA * d, const char *name, bool fConn)
{
CHAR_DATA *ch;
for (ch = char_first; ch != NULL; ch = ch->next)
{
if (!IS_NPC(ch) && (!fConn || ch->desc == NULL) &&
!str_cmp(d->character->name, ch->name))
{
if (fConn == FALSE)
{
free_string(d->character->pcdata->pwd);
d->character->pcdata->pwd = str_dup(ch->pcdata->pwd);
}
else
{
free_char(d->character);
d->character = ch;
ch->desc = d;
ch->timer = 0;
chprintln(ch, "Reconnecting. Type replay to see missed tells.");
act("$n has reconnected.", ch, NULL, NULL, TO_ROOM);
sprintf(log_buf, "%s@%s reconnected.", ch->name, d->host);
log_string(log_buf);
wiznet("$N groks the fullness of $S link.", ch,
NULL, WIZ_LINKS, 0, 0);
d->connected = CON_PLAYING;
/* Inform the character of a note in progress and the possbility
* of continuation!
*/
if (ch->pcdata->in_progress)
chprintln(ch,
"You have a note in progress. Type NOTE WRITE to continue it.");
}
return TRUE;
}
}
return FALSE;
}
/*
* Check if already playing.
*/
bool check_playing(DESCRIPTOR_DATA * d, const char *name)
{
DESCRIPTOR_DATA *dold;
for (dold = descriptor_first; dold; dold = dold->next)
{
if (dold != d && dold->character != NULL &&
dold->connected != CON_GET_NAME &&
dold->connected != CON_GET_OLD_PASSWORD &&
!str_cmp(name,
dold->original ? dold->original->name : dold->
character->name))
{
write_to_buffer(d, "That character is already playing.\n\r", 0);
write_to_buffer(d, "Do you wish to connect anyway (Y/N)?", 0);
d->connected = CON_BREAK_CONNECT;
return TRUE;
}
}
return FALSE;
}
void stop_idling(CHAR_DATA * ch)
{
if (ch == NULL || ch->desc == NULL || ch->desc->connected != CON_PLAYING
|| ch->was_in_room == NULL ||
ch->in_room != get_room_index(ROOM_VNUM_LIMBO))
return;
ch->timer = 0;
char_from_room(ch);
char_to_room(ch, ch->was_in_room);
ch->was_in_room = NULL;
act("$n has returned from the void.", ch, NULL, NULL, TO_ROOM);
return;
}
/*
* Write to one char.
*/
void chprint(CHAR_DATA * ch, const char *txt)
{
if (txt != NULL && ch && ch->desc != NULL)
write_to_buffer(ch->desc, txt, strlen(txt));
return;
}
void chprintln(CHAR_DATA * ch, const char *txt)
{
if (ch && ch->desc != NULL)
{
if (txt != NULL)
write_to_buffer(ch->desc, txt, strlen(txt));
write_to_buffer(ch->desc, "\n\r", 2);
}
return;
}
/*
* Send a page to one char.
*/
void page_to_char(const char *txt, CHAR_DATA * ch)
{
DESCRIPTOR_DATA *d;
if (txt == NULL || (d = ch->desc) == NULL)
return;
if (ch->lines == 0)
{
write_to_buffer(d, txt, strlen(txt));
return;
}
/*
* If there is already some data being "paged" for this descriptor,
* append the new string.
*/
if (!IS_NULLSTR(d->showstr_head))
{
char *fub;
int i;
int size_new = strlen(txt) + strlen(d->showstr_head) + 2;
alloc_mem(fub, char, size_new);
fub[0] = '\0';
strncat(fub, d->showstr_head, size_new);
i = strlen(fub) - strlen(d->showstr_point);
strncat(fub, txt, size_new);
replace_string(d->showstr_head, fub);
d->showstr_point = d->showstr_head + i;
free_mem(fub);
return;
}
replace_string(d->showstr_head, txt);
d->showstr_point = d->showstr_head;
show_string(d, "");
return;
}
/* string pager */
void show_string(DESCRIPTOR_DATA * d, char *input)
{
char buffer[MAX_STRING_LENGTH * 3];
char buf[MAX_INPUT_LENGTH];
register const char *scan;
register char *scan2;
register const char *chk;
int lines = 0;
int toggle = 1;
one_argument(input, buf);
switch (UPPER(buf[0]))
{
case '\0':
case 'C':
lines = 0;
break;
case 'R': /* refresh current page of text */
lines = -1 - (d->character->lines);
break;
case 'B': /* scroll back a page of text */
lines = -(2 * (int) d->character->lines);
break;
case '?':
case 'H': /* Show some help */
write_to_buffer(d, "Pager help:\n\r" "C or Enter next page\n\r"
"R refresh this page\n\r", 0);
write_to_buffer(d,
"B previous page\n\r"
"H or ? help\n\r" "Any other keys exit.\n\r",
0);
return;
default: /*otherwise, stop the text viewing */
if (d->showstr_head)
{
replace_string(d->showstr_head, "");
}
d->showstr_point = NULL;
return;
}
/* do any backing up necessary */
if (lines < 0)
{
for (scan = d->showstr_point; scan > d->showstr_head; scan--)
if ((*scan == '\n') || (*scan == '\r'))
{
toggle = -toggle;
if (toggle < 0)
if (!(++lines))
break;
}
d->showstr_point = scan;
}
/* show a chunk */
lines = 0;
toggle = 1;
for (scan2 = buffer;; scan2++, d->showstr_point++)
if (((*scan2 = *d->showstr_point) == '\n' || *scan2 == '\r')
&& (toggle = -toggle) < 0)
lines++;
else if (!*scan2
|| (d->character && !IS_NPC(d->character)
&& lines >= (int) d->character->lines))
{
*scan2 = '\0';
write_to_buffer(d, buffer, strlen(buffer));
/* See if this is the end (or near the end) of the string */
for (chk = d->showstr_point; isspace(*chk); chk++);
if (!*chk)
{
if (d->showstr_head)
{
replace_string(d->showstr_head, "");
}
d->showstr_point = 0;
}
return;
}
return;
}
char *fname(const char *namelist)
{
static char holder[256];
char *point;
for (point = holder; isalpha(*namelist); namelist++, point++)
*point = *namelist;
*point = '\0';
return (holder);
}
void perform_act(const char *orig, CHAR_DATA * ch, const void *arg1,
const void *arg2, flag_t type, CHAR_DATA * to)
{
static char *const he_she[] = { "it", "he", "she" };
static char *const him_her[] = { "it", "him", "her" };
static char *const his_her[] = { "its", "his", "her" };
CHAR_DATA *vch = (CHAR_DATA *) arg2;
OBJ_DATA *obj1 = (OBJ_DATA *) arg1;
OBJ_DATA *obj2 = (OBJ_DATA *) arg2;
const char *str, *i = NULL;
char *point;
char buf[MSL];
point = buf;
str = orig;
while (*str != '\0')
{
if (*str != '$')
{
*point++ = *str++;
continue;
}
++str;
i = "<@@@>";
if (!arg2 && *str >= 'A' && *str <= 'Z')
{
logf("perform_act:missing arg2 for code %d.", *str);
i = " <@@@> ";
}
else
{
switch (*str)
{
default:
logf("perform_act:bad code %c.", *str);
i = " <@@@> ";
break;
case '$':
i = "$";
break;
case 't':
if (arg1)
{
if (IS_SET(type, TO_DAMAGE)
&& (IS_NPC(to) || !IS_SET(to->act, PLR_AUTODAMAGE)))
i = &str_empty[0];
else
i = (const char *) arg1;
}
else
log_string("perform_act:bad code $t for 'arg1'");
break;
case 'T':
if (arg2)
i = (const char *) arg2;
else
log_string("perform_act:bad code $T for 'arg2'");
break;
case 'n':
if (ch && to)
i = PERS(ch, to);
else
log_string("perform_act:bad code $n for 'ch' or 'to'");
break;
case 'N':
if (vch && to)
i = PERS(vch, to);
else
log_string("perform_act:bad code $N for 'ch' or 'to'");
break;
case 'e':
if (ch)
i = he_she[URANGE(0, ch->sex, 2)];
else
log_string("perform_act:bad code $e for 'ch'");
break;
case 'E':
if (vch)
i = he_she[URANGE(0, vch->sex, 2)];
else
log_string("perform_act:bad code $E for 'vch'");
break;
case 'm':
if (ch)
i = him_her[URANGE(0, ch->sex, 2)];
else
log_string("perform_act:bad code $m for 'ch'");
break;
case 'M':
if (vch)
i = him_her[URANGE(0, vch->sex, 2)];
else
log_string("perform_act:bad code $M for 'vch'");
break;
case 's':
if (ch)
i = his_her[URANGE(0, ch->sex, 2)];
else
log_string("perform_act:bad code $s for 'ch'");
break;
case 'S':
if (vch)
i = his_her[URANGE(0, vch->sex, 2)];
else
log_string("perform_act:bad code $S for 'vch'");
break;
case 'g':
if (ch && ch->deity != NULL)
i = ch->deity->name;
else
log_string("perform_act:bad code $g for 'ch'");
break;
case 'G':
if (vch && vch->deity != NULL)
i = vch->deity->name;
else
log_string("perform_act:bad code $G for 'vch'");
break;
case 'c':
if (ch && ch->clan != NULL)
i = ch->clan->name;
else
log_string("perform_act:bad code $c for 'ch'");
break;
case 'C':
if (vch && vch->clan != NULL)
i = vch->clan->name;
else
log_string("perform_act:bad code $C for 'vch'");
break;
case 'o':
if (to && obj1)
i = can_see_obj(to, obj1) ? fname(obj1->name) : "something";
else
log_string("perform_act:bad code $o for 'to' and 'obj1'");
break;
case 'O':
if (to && obj2)
i = can_see_obj(to, obj2) ? fname(obj2->name) : "something";
else
log_string("perform_act:bad code $O for 'to' and 'obj2'");
break;
case 'p':
if (to && obj1)
i = can_see_obj(to, obj1) ? obj1->short_descr : "something";
else
log_string("perform_act:bad code $p for 'to' and 'obj1'");
break;
case 'P':
if (to && obj2)
i = can_see_obj(to, obj2) ? obj2->short_descr : "something";
else
log_string("perform_act:bad code $P for 'to' and 'obj2'");
break;
case 'd':
if (arg2 == NULL || ((const char *) arg2)[0] == '\0')
{
i = "door";
}
else
{
char name[MIL];
one_argument((const char *) arg2, name);
i = name;
}
break;
}
}
++str;
while ((*point = *i) != '\0')
++point, ++i;
}
*point++ = '{';
*point++ = 'x';
*point++ = '\n';
*point++ = '\r';
*point = '\0';
buf[0] = UPPER(buf[0]);
if (to->desc)
{
if (to->desc->connected == CON_PLAYING)
write_to_buffer(to->desc, buf, point - buf);
}
else if (IS_NPC(to) && MOBtrigger && HAS_TRIGGER_MOB(to, TRIG_ACT))
p_act_trigger(buf, to, NULL, NULL, ch, arg1, arg2, TRIG_ACT);
if (ch && ch->in_room && IS_SET(type, TO_ROOM | TO_NOTVICT))
{
OBJ_DATA *obj, *obj_next;
CHAR_DATA *tch, *tch_next;
point = buf;
str = orig;
while (*str != '\0')
{
*point++ = *str++;
}
*point = '\0';
for (obj = ch->in_room->first_content; obj; obj = obj_next)
{
obj_next = obj->next_content;
if (HAS_TRIGGER_OBJ(obj, TRIG_ACT))
p_act_trigger(buf, NULL, obj, NULL, ch, NULL, NULL, TRIG_ACT);
}
for (tch = ch; tch; tch = tch_next)
{
tch_next = tch->next_in_room;
for (obj = tch->first_carrying; obj; obj = obj_next)
{
obj_next = obj->next_content;
if (HAS_TRIGGER_OBJ(obj, TRIG_ACT))
p_act_trigger(buf, NULL, obj, NULL, ch, NULL, NULL,
TRIG_ACT);
}
}
if (HAS_TRIGGER_ROOM(ch->in_room, TRIG_ACT))
p_act_trigger(buf, NULL, NULL, ch->in_room, ch, NULL, NULL,
TRIG_ACT);
}
return;
}
const char *perform_act_string(const char *orig, CHAR_DATA * ch,
const void *arg1, const void *arg2, bool cReturn)
{
static char *const he_she[] = { "it", "he", "she" };
static char *const him_her[] = { "it", "him", "her" };
static char *const his_her[] = { "its", "his", "her" };
CHAR_DATA *vch = (CHAR_DATA *) arg2;
OBJ_DATA *obj1 = (OBJ_DATA *) arg1;
OBJ_DATA *obj2 = (OBJ_DATA *) arg2;
const char *str, *i = NULL;
char *point;
static char buf[MSL];
point = buf;
str = orig;
while (*str != '\0')
{
if (*str != '$')
{
*point++ = *str++;
continue;
}
++str;
i = "<@@@>";
if (!arg2 && *str >= 'A' && *str <= 'Z')
{
logf("perform_act:missing arg2 for code %d.", *str);
i = " <@@@> ";
}
else
{
switch (*str)
{
default:
logf("perform_act:bad code %c.", *str);
i = " <@@@> ";
break;
case '$':
i = "$";
break;
case 't':
if (arg1)
{
i = (const char *) arg1;
}
else
log_string("perform_act:bad code $t for 'arg1'");
break;
case 'T':
if (arg2)
i = (const char *) arg2;
else
log_string("perform_act:bad code $T for 'arg2'");
break;
case 'n':
if (ch)
i = IS_NPC(ch) ? ch->short_descr : ch->name;
else
log_string("perform_act:bad code $n for 'ch'");
break;
case 'N':
if (vch)
i = IS_NPC(vch) ? vch->short_descr : vch->name;
else
log_string("perform_act:bad code $N for 'vch'");
break;
case 'e':
if (ch)
i = he_she[URANGE(0, ch->sex, 2)];
else
log_string("perform_act:bad code $e for 'ch'");
break;
case 'E':
if (vch)
i = he_she[URANGE(0, vch->sex, 2)];
else
log_string("perform_act:bad code $E for 'vch'");
break;
case 'm':
if (ch)
i = him_her[URANGE(0, ch->sex, 2)];
else
log_string("perform_act:bad code $m for 'ch'");
break;
case 'M':
if (vch)
i = him_her[URANGE(0, vch->sex, 2)];
else
log_string("perform_act:bad code $M for 'vch'");
break;
case 's':
if (ch)
i = his_her[URANGE(0, ch->sex, 2)];
else
log_string("perform_act:bad code $s for 'ch'");
break;
case 'S':
if (vch)
i = his_her[URANGE(0, vch->sex, 2)];
else
log_string("perform_act:bad code $S for 'vch'");
break;
case 'g':
if (ch && ch->deity != NULL)
i = ch->deity->name;
else
log_string("perform_act:bad code $g for 'ch'");
break;
case 'G':
if (vch && vch->deity != NULL)
i = vch->deity->name;
else
log_string("perform_act:bad code $G for 'vch'");
break;
case 'c':
if (ch && ch->clan != NULL)
i = ch->clan->name;
else
log_string("perform_act:bad code $c for 'ch'");
break;
case 'C':
if (vch && vch->clan != NULL)
i = vch->clan->name;
else
log_string("perform_act:bad code $C for 'vch'");
break;
case 'o':
if (obj1)
i = fname(obj1->name);
else
log_string("perform_act:bad code $o for 'to' and 'obj1'");
break;
case 'O':
if (obj2)
i = fname(obj2->name);
else
log_string("perform_act:bad code $O for 'obj2'");
break;
case 'p':
if (obj1)
i = obj1->short_descr;
else
log_string("perform_act:bad code $p for 'obj1'");
break;
case 'P':
if (obj2)
i = obj2->short_descr;
else
log_string("perform_act:bad code $P for 'obj2'");
break;
case 'd':
if (arg2 == NULL || ((const char *) arg2)[0] == '\0')
{
i = "door";
}
else
{
char name[MIL];
one_argument((const char *) arg2, name);
i = name;
}
break;
}
}
++str;
while ((*point = *i) != '\0')
++point, ++i;
}
*point++ = '{';
*point++ = 'x';
if (cReturn)
{
*point++ = '\n';
*point++ = '\r';
}
*point = '\0';
buf[0] = UPPER(buf[0]);
return buf;
}
#define SENDOK(ch, type) ((IS_NPC(ch) || ((ch)->desc && (ch->desc->connected == CON_PLAYING))) \
&& ((ch)->position >= min_pos))
void act_new(const char *format, CHAR_DATA * ch, const void *arg1,
const void *arg2, flag_t type, int min_pos)
{
DESCRIPTOR_DATA *d;
ROOM_INDEX_DATA *room;
CHAR_DATA *to = (CHAR_DATA *) arg2;
if (!format || !*format)
return;
if (IS_SET(type, TO_CHAR))
{
if (ch && SENDOK(ch, type))
perform_act(format, ch, arg1, arg2, type, ch);
}
if (IS_SET(type, TO_VICT))
{
if (to && SENDOK(to, type) && to != ch)
perform_act(format, ch, arg1, arg2, type, to);
}
if (IS_SET(type, TO_ZONE | TO_ALL))
{
for (d = descriptor_first; d; d = d->next)
{
CHAR_DATA *vch = CH(d);
if (vch && SENDOK(vch, type) && (vch != ch)
&&
((IS_SET
(type, TO_ALL) || (vch->in_room
&& vch->in_room->area ==
ch->in_room->area))))
perform_act(format, ch, arg1, arg2, type, vch);
}
}
if (IS_SET(type, TO_ROOM | TO_NOTVICT))
{
OBJ_DATA *obj1 = (OBJ_DATA *) arg1;
OBJ_DATA *obj2 = (OBJ_DATA *) arg2;
if (ch && ch->in_room != NULL)
room = ch->in_room;
else if (obj1 && obj1->in_room != NULL)
room = obj1->in_room;
else if (obj2 && obj2->in_room != NULL)
room = obj2->in_room;
else
{
bugf("no valid target '%s'", format);
return;
}
for (to = room->first_person; to; to = to->next_in_room)
{
if (SENDOK(to, type) && (to != ch)
&& (IS_SET(type, TO_ROOM) || (to != (CHAR_DATA *) arg2)))
perform_act(format, ch, arg1, arg2, type, to);
}
}
return;
}
/* source: EOD, by John Booth <???> */
void chprintf(CHAR_DATA * ch, char *fmt, ...)
{
char buf[MAX_STRING_LENGTH];
va_list args;
va_start(args, fmt);
vsprintf(buf, fmt, args);
va_end(args);
chprint(ch, buf);
}
void chprintlnf(CHAR_DATA * ch, char *fmt, ...)
{
char buf[MAX_STRING_LENGTH];
va_list args;
va_start(args, fmt);
vsprintf(buf, fmt, args);
va_end(args);
chprintln(ch, buf);
}
void bugf(char *fmt, ...)
{
char buf[2 * MSL];
va_list args;
va_start(args, fmt);
vsprintf(buf, fmt, args);
va_end(args);
bug(buf, 0);
}
void logf(char *fmt, ...)
{
char buf[2 * MSL];
va_list args;
va_start(args, fmt);
vsprintf(buf, fmt, args);
va_end(args);
log_string(buf);
}
void update_last_func(DESCRIPTOR_DATA * d, const char *lstr, const char *sstr)
{
#if !defined(WIN32) && !defined(__CYGWIN__)
last_descriptor = d;
if (lstr != NULL)
strcpy(last_func_long, lstr);
if (sstr != NULL)
strcpy(last_func_short, sstr);
#endif
}
#if !defined(WIN32) && !defined(__CYGWIN__)
#define CORE_EXAMINE_SCRIPT "../corefiles/gdbscript"
void halt_mud(int sig)
{
DESCRIPTOR_DATA *d;
CHAR_DATA *ch;
struct sigaction default_action;
int i;
pid_t forkpid;
int status;
char message[MSL];
waitpid(-1, &status, WNOHANG);
if (!crashed)
{
crashed++;
logf("GAME CRASHED (SIGNAL %d, %s).", sig, strsignal(sig));
logf("Last recored function: %s", last_func_long);
// Inform last command typer that he caused the crash
if (last_descriptor && !IS_NULLSTR(last_func_short))
{
write_to_descriptor(last_descriptor,
"\n\rThe last command you typed, '", 0);
write_to_descriptor(last_descriptor, last_func_short, 0);
write_to_descriptor(last_descriptor,
"', might have caused this crash.\n\r"
"Please note any unusual circumstances to IMP and avoid using that command.\n\r",
0);
}
sprintf(message,
"\n\r---CRASH INFORMATION---\n\rSignal %d (%s)\n\rLast recorded function: %s\n\rDetails: %s\n\n",
sig, strsignal(sig),
!IS_NULLSTR(last_func_short) ? last_func_short : "<unknown>",
last_func_long);
for (d = descriptor_first; d != NULL; d = d_next)
{
d_next = d->next;
ch = CH(d);
if (!ch)
{
close_socket(d);
continue;
}
if (IS_NPC(ch))
continue;
if ((sig == SIGVTALRM || sig == SIGALRM) && IS_IMMORTAL(ch))
write_to_descriptor(d,
"\n\rThe mud has been unresponsive for 60 seconds. Rebooting.\n\r",
0);
write_to_descriptor(d, "\n\rThe mud has CRASHED.\007\n\r", 0);
if (IS_IMMORTAL(ch))
write_to_descriptor(d, message, 0);
}
// try to save all characters - save_char_obj has sanity checking
for (d = descriptor_first; d != NULL; d = d_next)
{
d_next = d->next;
ch = CH(d);
if (!ch)
{
close_socket(d);
continue;
}
save_char_obj(ch);
}
// success - proceed with fork/copyover plan. Otherwise will go to
// next section and crash with a full reboot to recover
if ((forkpid = fork()) > 0)
{
// Parent process copyover and exit
waitpid(forkpid, &status, WNOHANG);
// this requires you to add an "if (ch)" before the chprint
// statements in do_copyover.
do_copyover(NULL, "");
exit(0);
}
else if (forkpid < 0)
{
exit(1);
}
// Child process proceed to dump
// Close all files!
for (i = 255; i >= 0; i--)
close(i);
// Dup /dev/null to STD{IN,OUT,ERR}
open("/dev/null", O_RDWR);
dup(0);
dup(0);
default_action.sa_handler = SIG_DFL;
sigaction(sig, &default_action, NULL);
// Run gdb script.
if (!fork())
{
execl(CORE_EXAMINE_SCRIPT, CORE_EXAMINE_SCRIPT, (char *) NULL);
exit(0);
}
else
return;
raise(sig);
}
if (crashed == 1)
{
crashed++;
for (d = descriptor_first; d != NULL; d = d_next)
{
d_next = d->next;
ch = d->original ? d->original : d->character;
if (ch == NULL)
{
close_socket(d);
continue;
}
if (IS_NPC(ch))
continue;
write_to_descriptor(d,
"** Error saving character files; conducting full reboot. **\007\n\r",
0);
close_socket(d);
continue;
}
log_string("CHARACTERS NOT SAVED.");
default_action.sa_handler = SIG_DFL;
sigaction(sig, &default_action, NULL);
if (!fork())
{
kill(getppid(), sig);
exit(1);
}
else
return;
raise(sig);
}
if (crashed == 2)
{
crashed++;
log_string("TOTAL GAME CRASH.");
default_action.sa_handler = SIG_DFL;
sigaction(sig, &default_action, NULL);
if (!fork())
{
kill(getppid(), sig);
exit(1);
}
else
return;
raise(sig);
}
if (crashed == 3)
{
default_action.sa_handler = SIG_DFL;
sigaction(sig, &default_action, NULL);
if (!fork())
{
kill(getppid(), sig);
exit(1);
}
else
return;
raise(sig);
}
}
#endif
void set_game_levels(int Old, int New)
{
CMD_DATA *cmd;
HELP_DATA *pHelp;
OBJ_INDEX_DATA *pObj;
MOB_INDEX_DATA *pMob;
BAN_DATA *ban;
DISABLED_DATA *d;
MBR_DATA *mbr;
int hash, sn, x;
int diff = MAX_LEVEL - LEVEL_IMMORTAL;
int imm_level = Old - diff;
int mod = New - Old;
logf("Old Imm Level = %d, Old Max Level = %d.", imm_level, Old);
logf("New Imm Level = %d, New Max Level = %d.", New - diff, New);
for (cmd = cmd_first; cmd; cmd = cmd->next)
{
if (cmd->level >= imm_level)
cmd->level += mod;
}
save_commands();
for (pHelp = help_first; pHelp; pHelp = pHelp->next)
{
if (pHelp->level >= imm_level)
pHelp->level += mod;
}
save_helps();
for (hash = 0; hash < MAX_KEY_HASH; hash++)
{
for (pMob = mob_index_hash[hash]; pMob; pMob = pMob->next)
{
if (pMob->level >= imm_level)
{
pMob->level += mod;
SET_BIT(pMob->area->area_flags, AREA_CHANGED);
}
}
for (pObj = obj_index_hash[hash]; pObj; pObj = pObj->next)
{
if (pObj->level >= imm_level)
{
pObj->level += mod;
SET_BIT(pObj->area->area_flags, AREA_CHANGED);
}
}
}
do_asave(NULL, "changed");
for (ban = ban_first; ban; ban = ban->next)
{
if (ban->level >= imm_level)
ban->level += mod;
}
save_bans();
for (d = disabled_first; d; d = d->next)
{
if (d->level >= imm_level)
d->level += mod;
}
save_disabled();
for (sn = 0; sn < maxSkill; sn++)
{
for (x = 0; x < maxClass; x++)
{
if (skill_table[sn].skill_level[x] >= imm_level)
skill_table[sn].skill_level[x] += mod;
}
}
save_skills();
for (mbr = mbr_first; mbr; mbr = mbr->next)
{
if (mbr->level >= imm_level)
mbr->level += mod;
}
save_members();
}
CH_CMD(do_crash)
{
if (IS_NULLSTR(argument))
{
chprintln(ch, "Syntax: crash confirm - send a SIGSEGV to the mud.");
chprintln(ch, " : crash loop - start an infinite loop.");
return;
}
if (!str_cmp(argument, "loop"))
{
for (;;);
return;
}
else if (!str_cmp(argument, "confirm"))
{
raise(SIGSEGV);
return;
}
else
{
do_crash(ch, "");
return;
}
}